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wlan80211.h
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wlan80211.h
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/* horst - Highly Optimized Radio Scanning Tool
*
* Copyright (C) 2005-2015 Bruno Randolf (br1@einfach.org)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef _WLAN_HEADER_H_
#define _WLAN_HEADER_H_
#include <stdint.h>
struct wlan_frame {
uint16_t fc;
uint16_t duration;
uint8_t addr1[6];
uint8_t addr2[6];
uint8_t addr3[6];
uint16_t seq;
union {
uint16_t qos;
uint8_t addr4[6];
struct {
uint16_t qos;
uint32_t ht;
} __attribute__ ((packed)) ht;
struct {
uint8_t addr4[6];
uint16_t qos;
uint32_t ht;
} __attribute__ ((packed)) addr4_qos_ht;
} u;
} __attribute__ ((packed));
#define WLAN_FRAME_FC_VERSION_MASK 0x0003
#define WLAN_FRAME_FC_TYPE_MASK 0x000C
#define WLAN_FRAME_FC_STYPE_MASK 0x00F0
#define WLAN_FRAME_FC_STYPE_QOS 0x0080
#define WLAN_FRAME_FC_TO_DS 0x0100
#define WLAN_FRAME_FC_FROM_DS 0x0200
#define WLAN_FRAME_FC_MORE_FRAG 0x0400
#define WLAN_FRAME_FC_RETRY 0x0800
#define WLAN_FRAME_FC_POWER_MGMT 0x1000
#define WLAN_FRAME_FC_MORE_DATA 0x2000
#define WLAN_FRAME_FC_PROTECTED 0x4000
#define WLAN_FRAME_FC_ORDER 0x8000
#define WLAN_FRAME_FC_MASK (WLAN_FRAME_FC_TYPE_MASK | WLAN_FRAME_FC_STYPE_MASK)
#define WLAN_FRAME_TYPE(_fc) ((_fc & WLAN_FRAME_FC_TYPE_MASK) >> 2)
#define WLAN_FRAME_STYPE(_fc) ((_fc & WLAN_FRAME_FC_STYPE_MASK) >> 4)
#define WLAN_FRAME_FC(_type, _stype) ((((_type) << 2) | ((_stype) << 4)) & WLAN_FRAME_FC_MASK)
#define WLAN_FRAME_TYPE_MGMT 0x0
#define WLAN_FRAME_TYPE_CTRL 0x1
#define WLAN_FRAME_TYPE_DATA 0x2
#define WLAN_NUM_TYPES 3
#define WLAN_NUM_STYPES 16
#define WLAN_FRAME_IS_MGMT(_fc) (WLAN_FRAME_TYPE(_fc) == WLAN_FRAME_TYPE_MGMT)
#define WLAN_FRAME_IS_CTRL(_fc) (WLAN_FRAME_TYPE(_fc) == WLAN_FRAME_TYPE_CTRL)
#define WLAN_FRAME_IS_DATA(_fc) (WLAN_FRAME_TYPE(_fc) == WLAN_FRAME_TYPE_DATA)
#define WLAN_FRAME_IS_QOS(_fc) (((_fc) & WLAN_FRAME_FC_STYPE_MASK) == WLAN_FRAME_FC_STYPE_QOS)
/*** management ***/
#define WLAN_FRAME_ASSOC_REQ WLAN_FRAME_FC(WLAN_FRAME_TYPE_MGMT, 0x0)
#define WLAN_FRAME_ASSOC_RESP WLAN_FRAME_FC(WLAN_FRAME_TYPE_MGMT, 0x1)
#define WLAN_FRAME_REASSOC_REQ WLAN_FRAME_FC(WLAN_FRAME_TYPE_MGMT, 0x2)
#define WLAN_FRAME_REASSOC_RESP WLAN_FRAME_FC(WLAN_FRAME_TYPE_MGMT, 0x3)
#define WLAN_FRAME_PROBE_REQ WLAN_FRAME_FC(WLAN_FRAME_TYPE_MGMT, 0x4)
#define WLAN_FRAME_PROBE_RESP WLAN_FRAME_FC(WLAN_FRAME_TYPE_MGMT, 0x5)
#define WLAN_FRAME_TIMING WLAN_FRAME_FC(WLAN_FRAME_TYPE_MGMT, 0x6)
/* (reserved) 0x7 */
#define WLAN_FRAME_BEACON WLAN_FRAME_FC(WLAN_FRAME_TYPE_MGMT, 0x8)
#define WLAN_FRAME_ATIM WLAN_FRAME_FC(WLAN_FRAME_TYPE_MGMT, 0x9)
#define WLAN_FRAME_DISASSOC WLAN_FRAME_FC(WLAN_FRAME_TYPE_MGMT, 0xa)
#define WLAN_FRAME_AUTH WLAN_FRAME_FC(WLAN_FRAME_TYPE_MGMT, 0xb)
#define WLAN_FRAME_DEAUTH WLAN_FRAME_FC(WLAN_FRAME_TYPE_MGMT, 0xc)
#define WLAN_FRAME_ACTION WLAN_FRAME_FC(WLAN_FRAME_TYPE_MGMT, 0xd)
#define WLAN_FRAME_ACTION_NOACK WLAN_FRAME_FC(WLAN_FRAME_TYPE_MGMT, 0xe)
/* (reserved) 0xf */
/*** control ***/
/* (reserved) 0-3 */
#define WLAN_FRAME_BEAM_REP WLAN_FRAME_FC(WLAN_FRAME_TYPE_CTRL, 0x4)
#define WLAN_FRAME_VHT_NDP WLAN_FRAME_FC(WLAN_FRAME_TYPE_CTRL, 0x5)
/* (reserved) 0x6 */
#define WLAN_FRAME_CTRL_WRAP WLAN_FRAME_FC(WLAN_FRAME_TYPE_CTRL, 0x7)
#define WLAN_FRAME_BLKACK_REQ WLAN_FRAME_FC(WLAN_FRAME_TYPE_CTRL, 0x8)
#define WLAN_FRAME_BLKACK WLAN_FRAME_FC(WLAN_FRAME_TYPE_CTRL, 0x9)
#define WLAN_FRAME_PSPOLL WLAN_FRAME_FC(WLAN_FRAME_TYPE_CTRL, 0xa)
#define WLAN_FRAME_RTS WLAN_FRAME_FC(WLAN_FRAME_TYPE_CTRL, 0xb)
#define WLAN_FRAME_CTS WLAN_FRAME_FC(WLAN_FRAME_TYPE_CTRL, 0xc)
#define WLAN_FRAME_ACK WLAN_FRAME_FC(WLAN_FRAME_TYPE_CTRL, 0xd)
#define WLAN_FRAME_CF_END WLAN_FRAME_FC(WLAN_FRAME_TYPE_CTRL, 0xe)
#define WLAN_FRAME_CF_END_ACK WLAN_FRAME_FC(WLAN_FRAME_TYPE_CTRL, 0xf)
/*** data ***/
#define WLAN_FRAME_DATA WLAN_FRAME_FC(WLAN_FRAME_TYPE_DATA, 0x0)
#define WLAN_FRAME_DATA_CF_ACK WLAN_FRAME_FC(WLAN_FRAME_TYPE_DATA, 0x1)
#define WLAN_FRAME_DATA_CF_POLL WLAN_FRAME_FC(WLAN_FRAME_TYPE_DATA, 0x2)
#define WLAN_FRAME_DATA_CF_ACKPOLL WLAN_FRAME_FC(WLAN_FRAME_TYPE_DATA, 0x3)
#define WLAN_FRAME_NULL WLAN_FRAME_FC(WLAN_FRAME_TYPE_DATA, 0x4)
#define WLAN_FRAME_CF_ACK WLAN_FRAME_FC(WLAN_FRAME_TYPE_DATA, 0x5)
#define WLAN_FRAME_CF_POLL WLAN_FRAME_FC(WLAN_FRAME_TYPE_DATA, 0x6)
#define WLAN_FRAME_CF_ACKPOLL WLAN_FRAME_FC(WLAN_FRAME_TYPE_DATA, 0x7)
#define WLAN_FRAME_QDATA WLAN_FRAME_FC(WLAN_FRAME_TYPE_DATA, 0x8)
#define WLAN_FRAME_QDATA_CF_ACK WLAN_FRAME_FC(WLAN_FRAME_TYPE_DATA, 0x9)
#define WLAN_FRAME_QDATA_CF_POLL WLAN_FRAME_FC(WLAN_FRAME_TYPE_DATA, 0xa)
#define WLAN_FRAME_QDATA_CF_ACKPOLL WLAN_FRAME_FC(WLAN_FRAME_TYPE_DATA, 0xb)
#define WLAN_FRAME_QOS_NULL WLAN_FRAME_FC(WLAN_FRAME_TYPE_DATA, 0xc)
/* (reserved) 0xd */
#define WLAN_FRAME_QOS_CF_POLL WLAN_FRAME_FC(WLAN_FRAME_TYPE_DATA, 0xe)
#define WLAN_FRAME_QOS_CF_ACKPOLL WLAN_FRAME_FC(WLAN_FRAME_TYPE_DATA, 0xf)
#define WLAN_FRAME_QOS_TID_MASK 0x7
#define WLAN_FRAME_QOS_AMSDU_PRESENT 0x80
#define WLAN_FRAME_SEQ_MASK 0xFFF0
#define WLAN_FRAME_SEQ_FRAG_MASK 0x000F
#define WLAN_FRAME_HT_VHT 0x1
#define WLAN_FRAME_VHT_BW_MASK 0x30000
#define WLAN_FRAME_VHT_BW_20MHZ 0x0
#define WLAN_FRAME_VHT_BW_40MHZ 0x10000
#define WLAN_FRAME_VHT_BW_80MHZ 0x20000
#define WLAN_FRAME_VHT_BW_160MHZ 0x30000
/*** individual frame formats ***/
/* beacon + probe response */
struct wlan_frame_beacon {
uint64_t tsf;
uint16_t bintval;
uint16_t capab;
unsigned char ie[0];
} __attribute__ ((packed));
/*** capabilities ***/
#define WLAN_CAPAB_ESS 0x0001
#define WLAN_CAPAB_IBSS 0x0002
#define WLAN_CAPAB_CF_POLL 0x0004
#define WLAN_CAPAB_CF_POLL_REQ 0x0008
#define WLAN_CAPAB_PRIVACY 0x0010
#define WLAN_CAPAB_SHORT_PRE 0x0020
#define WLAN_CAPAB_PBCC 0x0040
#define WLAN_CAPAB_CHAN_AGILIY 0x0080
#define WLAN_CAPAB_SPECT_MGMT 0x0100
#define WLAN_CAPAB_QOS 0x0200
#define WLAN_CAPAB_SHORT_SLOT 0x0400
#define WLAN_CAPAB_APSD 0x0800
#define WLAN_CAPAB_RADIO_MEAS 0x1000
#define WLAN_CAPAB_OFDM 0x2000
#define WLAN_CAPAB_DEL_BLKACK 0x4000
#define WLAN_CAPAB_IMM_BLKACK 0x8000
/*** information elements ***/
struct information_element {
uint8_t id;
uint8_t len;
unsigned char var[0];
};
/* only the information element IDs we are interested in */
#define WLAN_IE_ID_SSID 0
#define WLAN_IE_ID_DSSS_PARAM 3
#define WLAN_IE_ID_HT_CAPAB 45
#define WLAN_IE_ID_RSN 48
#define WLAN_IE_ID_HT_OPER 61
#define WLAN_IE_ID_VHT_CAPAB 191
#define WLAN_IE_ID_VHT_OPER 192
#define WLAN_IE_ID_VHT_OMN 199
#define WLAN_IE_ID_VENDOR 221
/* HT capability info */
// present in Beacon, Assoc Req/Resp, Reassoc Req/Resp, Probe Req/Resp, Mesh Peering Open/Close
#define WLAN_IE_HT_CAPAB_INFO_CHAN_WIDTH_40 0x0002
#define WLAN_IE_HT_OPER_INFO_CHAN_OFFSET 0x0003
/* VHT capability info */
#define WLAN_IE_VHT_CAPAB_INFO_CHAN_WIDTH 0x0000000c
#define WLAN_IE_VHT_CAPAB_INFO_CHAN_WIDTH_80 0 /* 80MHz only */
#define WLAN_IE_VHT_CAPAB_INFO_CHAN_WIDTH_160 1 /* 160MHz */
#define WLAN_IE_VHT_CAPAB_INFO_CHAN_WIDTH_BOTH 2 /* 160MHz and 80+80 MHz */
#define WLAN_MAX_SSID_LEN 34
#endif